Lesson Worksheet: Multiplication by 8 Mathematics

In this worksheet, we will practice multiplying by 8 using models or properties of multiplication and completing the times table of 8 up to 10 × 8.

Q1:

The sequence chart shown can help us multiply by 8 using skip counting by eights up to 10 times.

Skip counting by eights
12345678910
11121314151617181920
21222324252627282930
31323334353637383940
41424344454647484950
51525354555657585960
61626364656667686970
71727374757677787980

Use skip counting to find 8×2.

Use skip counting to find 8×9.

Q2:

What is the number that if multiplied by 8 results in 24?

Q3:

This robot multiplies any input by 8 to give an output.

If we give the robot an input of 2, it will give an output of 16, which is 8×2.

What would the output of the robot in the following case be?

What would the output of the robot in the following case be?

Q4:

To fill the multiplication wheel, we simply multiply the number in the center by the ones in the middle circle and then write the answers in the corresponding outer blank circle.

What number replaces the question mark?

What number replaces the question mark?

Q5:

Farida thinks of a number and multiplies it by 8. She gets the correct answer, 24. What number did she start with?

Q6:

Complete: 8×=56.

Q7:

Fill in the blanks: 8×9=.

Q8:

Ali wrote down all the multiples of 8 from 8 to 80: 8, 16, 24, 32, 38, 48, 56, 64, 72, 80.

He made one mistake. Which number is wrong?

What number should it be?

Q9:

Complete the table.

Multiply by 8
2  
3  
4   32
  • A16, 40
  • B16, 24
  • C16, 32
  • D24, 40
  • E32, 40

Q10:

Naser knows the answer to 5×8.

Tell him what number to add to 5×8 to get the answer to 6×8.

What is 6×8?

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